Effect of manure and fertilizer on chemical properties of soil in agroforestry and rice-wheat cropping systems under open field condition

Abstract

A field experiment was conducted during the crop season, 2016-17 and 2017-18 at two different sites of GBPUA&T, Pantnagar, in the first site i.e. Norman E. Borlaug Crop Research Centre, four treatments were taken in an ongoing Long Term Fertilizer Experiment, and the second site was Agroforestry Research Centre, where two treatments were taken from Poplar and Eucalyptus based agroforestry systems and analyzed in randomized block design with four replication. Results showed that the highest soil organic carbon, nitrogen, phosphorus and potassium recorded under treatment T3-100 % RDF + FYM (LTFE) at surface and sub surface soil during both the year after kharif and rabi. However, the highest EC was recorded under treatment T5-Poplar (Agroforestry). The considerable variation is observed in soil pH at surface and subsurface soil during both the crop season after kharif and rabi002E.